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New front drive shaft leak

5.5K views 9 replies 5 participants last post by  PhilD  
#1 ·
I had a new front drive shaft installed and now I have a leak between the yoke and front diff.

After taking out the stock shaft and taking the nut off the front diff, the guy just took a hammer to the stock connector and knocked it until it came off. How likely is it that this caused the leak? Over night it's a 4in puddle.

Is it normal for some fluid to leak? I've got grease splatter (the dark purple grease), but that looks like what was just on the shaft before install comming off.

It also looks like the guy didn't put the dust cover back on.

Thanks.
 
#2 ·
Ooo, a hammer? :mr-t: maybe could've gotten away with that on the A-Team, but they do make pullers for a reason. A 4" puddle is not a good thing. I think your best hope is that it's just the seal that's bad and not the pinion shaft bearing that's been screwed up. My BFH is one of my favorite tools, but it'll never get near my flanges.
 
#3 ·
That's exactly what caused it... The seal is most likely broken.. Hopefully like he said its nothing worse... Even with an impact wrench those nuts are tough to get off... Better have it looked @ at the stealership and let them tell you whats wrong and then fix it yourself or see if can be warranty'd... :D
 
#4 ·
More important to worry about is the pinion preload if he overtightened the nut that holds the flange to the pinion it can damage your bearings. If he didnt tighten that nut enough it can damage your bearings and gears.
 
#8 ·
New pinion bearing preload is 14-19 inch pounds used is half that it would be hard to tell with the carrier in. If a comparison measurement wasn't taken before it would be hard to tell. Hopefully he didnt just crank and crank down with an impact, it is possible that he wasnt able to further crush the crush sleeve that sets preload. I would think that 75 foot pounds on the pinion nut would be enough to secure a new yoke and not create any problems you could probably go as high as 150 since it takes between 300 and 500 foot punds to crush a crush sleve.
 
#9 ·
.....Hopefully he didnt just crank and crank down with an impact....
Oh, ya, that's exactly what he did. It was the same impact he had just finshed putting the tires on with (also, had them rotate & balance them). He put the nut on and then zipped it with the impact to get it on. Then held the trigger on the impact and called it a day.

So, given I am where I am. What would you do next?